Question

1. Write this in Standard Form:

5xy2 - x2 + 9x3y - y4 + 2

2. Solve: 5x^2.-7x^6

3. A monomial is a number, variable, or a product of numbers and
variables.


True

False

Answer 1

1. 9x^3y - y^4 + 5xy^2 - x^2 + 2
(arranged by total degree, highest first)

2. 5x^2 · (-7x^6) = -35x^8
(multiply coefficients: 5·-7 = -35; add exponents: 2+6 = 8)

3. True.
(A monomial is a single term: a number, a variable, or a product of numbers and variables—typically with nonnegative integer exponents.)